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Evidently, when Mary (Mary Tyler Moore) had her tonsils removed as a child, it didn't "take"; the tonsils grew back, and the grown-up heroine winds up in the hospital for a belated second operation. An already embarrassing situation becomes downright uncomfortable when Mary shares her hospital room with Loretta Kuhne (Pat Carroll), a confirmed sourpuss who refuses to be friendly no matter how hard her perky roommate tries to win her over. In the end, the mean-spirited Loretta "wins" the battle of wills -- or does she? "Hi" was originally broadcast on February 6, 1971.